Search for dissertations about: "N. Ohlsson"
Showing result 1 - 5 of 6 swedish dissertations containing the words N. Ohlsson.
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1. A clinical positron emission tomography facility : 2-¹⁸FDG studies : development and results
Abstract : Positron emission tomography (PET) is a tracer technique used for quantitative in vivo studies of physiological and biochemical processes. Because of the use of positron-emitting radionuclides such as 11-C, 13-N, 15-O and 18-F, which are isotopes of the biologically ubiquitous elements, it is possible to label radiopharmaceuticals which trace biochemical processes precisely. READ MORE
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2. Maximally Supersymmetric Models in Four and Six Dimensions
Abstract : We consider two examples of maximally supersymmetric models; the N=4 Yang-Mills theory in four dimensions and the (2,0) theory in six dimensions. The first part of the thesis serves as an introduction to the topics covered in the appended research papers, and begins with a self-contained discussion of principal fibre bundles and symplectic geometry. READ MORE
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3. Perturbative Aspects of Supersymmetric Yang-Mills Theory on T3
Abstract : This thesis is concerned with perturbative aspects of supersymmetric Yang-Mills theory in a space-time of the form T3xR, in the regime where the gauge coupling is weak. Wave functions of vacuum states of super Yang-Mills theoriesare supported on the moduli space of flat connections, and we consider a semi-classical treatment of such theories, obtained by expanding the fields around some normalizable zero energy background field configuration. READ MORE
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4. Spins and Giants : Fundamental Excitations in Weakly and Strongly Coupled ABJM Theory
Abstract : The discovery of integrability on both sides of the duality between planar N=4 super Yang-Mills theory and free type IIB string theory in AdS5 × S5 has lead to great progress in our understanding of the AdS/CFT correspondence. Similar integrable structures also appear in the more recent three-dimensional superconformal N=6 Chern-Simons-matter theory constructed by Aharony, Bergman, Jafferis and Maldacena (ABJM), as well as in its gravity dual, type IIA string theory on AdS4 × CP3. READ MORE
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5. Non-conveyance within the Swedish ambulance service : A prehospital patient safety study
Abstract : BackgroundThere is an increasing demand for ambulance services and more patients than before are requesting ambulance assistance for low acuity conditions. Ambulance services non-convey patients because they lack acute care needs. READ MORE
